refactor: remove unnecessary memory allocation in pzserver config

The startparameters variable in the pzserver configuration file was modified to remove the unnecessary memory allocation parameter. This change simplifies the configuration and improves efficiency.

lgsm/config-default/config-lgsm/pzserver/_default.cfg

@@ -10,11 +10,10 @@
 
 ## Predefined Parameters | https://docs.linuxgsm.com/configuration/start-parameters
 ip="0.0.0.0"
-javaram="8192" # -Xmx$8192M
 adminpassword="CHANGE_ME"
 
 ## Server Parameters | https://docs.linuxgsm.com/configuration/start-parameters#additional-parameters
-startparameters="--ip ${ip} -adminpassword \"${adminpassword}\" -servername ${selfname} -Xmx${javaram}M"
+startparameters="--ip ${ip} -adminpassword \"${adminpassword}\" -servername ${selfname}"
 
 #### LinuxGSM Settings ####